PartsTable
Technical Data Sheet
LON-104B51X3 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-315-9463, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
LON-104B51X3
NSN: 5331-01-315-9463
FSC: 5331 — O-RING
CAGE: 1TH76 — ROLLS-ROYCE MARINE NORTH AMERICA INC (USA)
SPECIFICATIONS
Part NumberLON-104B51X3
NSN5331-01-315-9463
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: LON-104B51X3 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
382 1-1/2-12 UNFInterchangeable
interchangeable cross-reference
interchangeable
GGG-D-296Interchangeable
interchangeable cross-reference
interchangeable
23390Interchangeable
interchangeable cross-reference
interchangeable
4454Interchangeable
interchangeable cross-reference
interchangeable
11629AInterchangeable
interchangeable cross-reference
interchangeable
11629Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LON-104B51X3?
LON-104B51X3 is a O-RING.
What parts can replace LON-104B51X3?
There are 10 known substitutes for LON-104B51X3: 382 1-1/2-12 UNF, GGG-D-296, 23390 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LON-104B51X3?
LON-104B51X3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-315-9463. This indicates validated use in U.S. government and defense supply chains.
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